Displacement pump



se tyz-l ,;1926. l 1,600,504 v B. HALVORSEN v I DISPLACEMENT PUMP-V 7Filed August -11, ;921- zslieetsahe t -zj Patented Sept. 21, 1926.

1. UNITED stares PATENT oir rlqcis; f

HALEERTB. HALVORSEN, OF CHICAGO, ILLINOIS, ASSIGNOR TO SULLIVAN MACHINERCOMPANY, A CORPORATION OF MASSACHUSETTS.

DISPLACEMENT PUMP.

Application filed August 11, 1921 7 Serial No. 491,508.

My invention relates to displacement pumps.

An object of my inventionis to provide an improved displacementtypepump. Another object of my invention is to provide an improveddisplacement type pump havin g improved automatically controlled: meansfor-the supply of the pumping medium thereto. A further object of myinvention is to provide an improved displacement type pump in which thecontrol may beaccomplished without the reliance upon floats and by theweiglit'of the liquid being pumped. Other objects of my invention willhereinafter more fully appear.

In the accompanying drawings I have shown torpurposes of illustrationone form 'which my invention may assume "in practice.

In these drawings, 1

Fig 1 isa side elevation of the illustrative form-o1 my improved pumping'mechanism'; parts being shown in section.

ig. 2 is a plan view of the mechanism shown in Fig. 1. 5 I

Fig. 3 'is'an end View, the view being taken from the right hand end ofFig.1.

Fig. 4 is a central vertical section on the liue 44 ofFig. 1. 1

Figs. 5 and 6 are details of the valve mechanism. I

My improved pumping mechanismcomprises a pairof displacement tanks and 2rigidly mounted upon a beam 3 which is in turn pivotally mounted as bestshown in Fig.4 upon a base member 4 which is provided with upstandingbrackets 5 pivotally supporting said beam '3, the latter being in turnprovided with depending hangers 6 for supporting the same upon thetransverse shaft 7 which is rotatably mounted in the brackets 5 insuitableanti-triction bearings. In the bottoms of each of the tanks-1and 2 there are provided common inlet and-dis:

charge connections 9 and 10 respectively, these connectionscommunicating with transversely extending p1pes'11and 12'secured totheconnections 9 and 10 beneath the beam 3.- The transverse connections11 and 12 communicate at opposite sides-of the beam 3 with inlet anddischarge connections 13 and 14 respectively, there beingprovlded checkvalves '15 andlG permitting flow only toward the tanks inthe-connections between the line 13-and the pipes 11 and 12, and 17 and18 permitting discharge only between the line 14 and the pipes 11'and12.' It will bc'evident from an inspection of Fig. 4 that the pipes 11and '12 communicate beyond :the check valves with Xs; 19 and 20, therad-'j'acent sides of the latter being blanked o-fi" and the remote sidesbeing provided-with tubular sections 21 and 22surrounded by -.suitableglands 28 and 24 whereby a movtable but fluid tight connection may bearranged between the inlet. and'discharg e lines 13 and 14 and the tanks 1and 2.*' v

It will he notedthat the beam 3 carries at one end thereof a'depending.vertically disposed rack 25 adapted'to' cooperate with a spur gear 26mounted upon a horizontal the base 4 and thatthis shaft carries a suit--.ably keyechor otherwise held with respect thereto, arm 29 having sarelatively heavy weight 30-thereon, the weight 30 being so proportionedrelative to its leverage 5 as to 'tend to counterbalance the weight ofeither ofthe tanks as they fill while' the other" is emptying. Suitablelimit'or stop means 31 and 32 are provided upon the base 4 to pre-Qvent' excessive tipping of the beam 3.

For the purpose of supplying and exhausting air or other suitablepumping media to-the tanks 1 and 2 whereby to 'cause the I supportuponran arm 35- projee ti'ng upward from the end of the beam oppositethe cooperate with the stationary abutment member 42 secured to theframe4, there beshaft 27 journaledas-at 28 uponthe end of -.discharge of theliquid from the' tanks in alternation and to permit their "re-fillinging" springs 43 and 44 surrounding the stem 38 betweenfthe abutment 42:and thestops 40 and 41 to cushion the action-1t will thusbe evidentthatas the be'am'tilts'clo'ckwise,-the-'valve willyat approximately the Iend ofthe tilting movement, assume a po-v I sition near"the top of thecasing, as its downward movement'will be'interrupt'ed by engagement ofthe spring betweenthe colla r 40 and the abutment'42 with said parts'nects with the 'linel56 leading totthe top of the tank "1. Port 54:communicates with the .line 57 leading to the top of tank 2 and port 53'leads to exhaust. It will be noted that the-valve 37. isof a type inwhich a port 58 extends betweenand opens through the 7 surfaces of theends of the D, being similar in construction to the w-ell-known- Allenvalve which is familiar in steam engine use: It will be .notedthat thevalve 37 and the port'58. are so constructed that the tanks maybeconnected together when the valve is insubstantiallymid-position and.priorzto' the. connection ofthe tank, which 'has been. receiving liveair,'with exhaust wherebyaconsiderable quantity of air may be bypassedfrom one tank to the economy will be obtained. 7 The modeof"operationofthis'mechanism willbe readily apparent from thedescripother and "tion so. far :given. .Assume' that the parts 1areiinthe'position shown with aircut ofi' from both of'the tanks, the: valvestem 38 will then'ibemoved by hand to one of its extreme positionswhereby to supply air under pressure to one. ofthe tanks and connect theother with exhaust" In order to prevent tlIB WZIStBf'Oftllelfiuld beingsup- ;plied to the/tank connected with air, one .or theother of themanually-controlledstop .1valves '60 and 61 in: the lines 56 and '57,re-

spectively, .will be closed. Thetank in which atmospheric pressure aloneexists will ac- .cordinglybegin to -fill.;by reason" of the admissionthrough the check valve 15 or 16 1ofliquid which flows in :by gravity.As the the weight 30 will be swung in oneidirection :or theother, itbeing noted that the force iqui-d rises in the tank whichis, beingfilled,

necessary to moveythe weight increases as -.-the: weight moves morenearlyctoward la horizontal position. Approximately at the 1moment when,theweight has reached horizontal position, the tank will become filled:andasthe arm reaches and;crosses its horizontal position, itsresistance will decrease and so arelatively rapid tilting'movement ofthe beam will cause: the valve-chest; t0

move-to such-an extent as to cause it to move .relative-to-the valve,whose path-is limited as described, in such manner as to shiftrelatively to the valve first to mid-position and then. to reverseposition. As this occurs, the valve or 61 which was closed may be openedas there will no longer be any dis charge of waste air. The air admittedto the tank which had previously been filling will begin to dischargethe liquid therefrom and the other tank will begin to fill under thegravity head of the liquid, the weight 30 assisting the parts to returnto initial position at such time as the tanks are equally filled. Thedischarge of liquid from the tank first filled will continue while thefilling of the other will simultaneously 0 on until the; tank firstfilled is emptie and the other full-.- rThegrelative vpositions of thevalve chest 36 andthe valve 37 will then be reversed as, previouslydescribed and the original operation continued, the sole d1fi'erencebeing that the; tank-last filled will be =discharged.- The systemnowbeing in full operation will continue to operate automatically'as longas liquid is supplied to it and pressure fluid is'av'ailable' to causethe discharge of the liquid from; the tanks'alternately. It will beevident that tilting movement of the beam 3'will be limited to theproper amount by the stopsBl or.-,32. a

While l have inthisapplication specifically described one embodimentwhich my invention may assume in practice, it will be understoodthatfthis form of the same isshownjfor purposes, of illustration andthat the invention maybe modified andjembodied in various other formswithout-departing from the spirit or the scope'o-f the appended claims.

hat I claim as new}. and desire to secure by Letters Patent is 1. In apump, a fluid container, tiltable fluid pressure means for pumping fluidtherefrom, means for controlling said latter means comprising a valve,and an oscillatory weighted arm constantly cooperating there- 'withandadapted to operatively control-said valve. 1 v I '2. In; a; pump,apl-urality of fiuid containers, fluid pressure means for pumpingfiuidtherefrom, means for controlling said latter :means comprising .avalve,-an; oscillatory weight-ed arm constantly cooperating therewith.and operatively controlling said valve, andmeans for actuating-said armto vary thejresistingforce-thereof.-

3. In: a pump, a fluid container, fluid pressure means for pumping-'fiuid therefrom, means for controllingsaid latter means comprising a:valve, an oscillatory weighted arm operativelycontrollingsaid-valve, andmeans for actuatmg-sa1d arm to vary the resisting force thereof, saidvalve'being adapted to be actuated after said mum. A 1 1 Ina'displacement pump, a plurality of pivotally supported pumping tanks,counterbalancing means therefor, and means force reaches its max-iingmeans disposed neoogso'a controlled by the tilting movement of saidtanks to effect the admission'and discharge of liquid with respectthereto.

5. In a displacement pump, a plurality of pivotally supported pumpingtanksfcounterbalancing means therefor, and means controlled by thetilting movement of said; tanks for controlling the admission andexhausting of a pumping medium with respect thereto.

- -6. In a displacement pump, a plurality of counterbalancing meanscontrolled by said support for 'counterbalancing the Weightof liquidadmitted to said tanks, means for admitting and discharging liquidthrough thebottoms of said tanks, and means for alternately admittingand discharging pumping fllllCl controlling valve associated therewith,

'fluid through thetops ofsaid tanks.

8. In a displacement pump, a plurality of tanks, means whereby liquidmaybe supplied to said tanks in alternation, and pres sure fluid meansfor discharging said liquid comprising means controlled bythe fluidbeing .pumped tanks prior to the connection of the tankto which pressurehad been, supplied witha 9. In a displacement pump, a plurality ofmovable tanks, means for supplying liquid to said tanks in alternation,andpressure fluid means for discharging-said liqu d'com-' prisingmeans'made operative by movement of said tanks to-interconnect saidtanksprior to the connection of the tank't ov which pressure has beensupplied With a discharge line.'

10. In adisplace-ment pump, a plurality of pivotally mounted tanks, andmeans .com-' prising a relatively movable valve and valve chest forcontrolling the supply and exhaust of pivotally "prising arelativelymovable valveand valve ehest'for controlling thesupply andexhaust fluid to and from said tanks," saic chestbeingtilt able withsaid tanks and of pumping fluid to and from said tanks, said membersbeing tiltable with said tanks, one of said members being movablebetween given positions upon tilting thereof, and the other beingmovable over a shorter path'linn ited by springscooperating Wltliilstat1'on' ary abutment. 7 r V '11. In a displacement pump, a pluralitymounted tanks, and means comumping operative to interconnect said base,a plurality of "movable between given positions upon tiltfilling thereofand a more rapid movement-- When said tank 'is' substantially full. I

13. In "a displacement pump, a plurality of displacement'tanks, andmeans controlled by the wei 'ht of the liquid admitted to said tanks forcontrolling the supply of pressure fluid thereto for. effecting thedischarge of liquid therefrom and means for preventing operation of saidcontrol mechanism until one of said tanks is filled.

14. In a displacement pump, a plurality of pivotally mounted pumpingtanks, and means for alternately filling and discharging said tankscomprising control mechanism controlled by the weight of a liquidadmitted to said tanks and means cooperating with said tanks to' preventoperation of saideontrol mechanism until one of said tanks isfilled.

15. In a displacement pump, a plurality of pivotally" mounted pumpingtanks having a means for alternately filling and dischargmg saidtanks,andcontrol mechanism there- 16'. In a displacement pump, a plurality ofpivotally mounted pumping tanks, means for alternately filling anddischarging-said tanks controlled by the tilting movement thereof, andaI-pivote'd weighted-arm having an element"cooperating with said tanksto control the tilting movement thereof.

17. In 'a' displacement pump, a stationary 'pivot'ally mounted: pumpingtanks thereon, tilting movement of said tanks'to effect the "admissionand discharge of liquid with respect thereto, and means carried by saidbase and cooperating With said tanks to counterbalance the'same.

I pump, a displacenieans controlled by the" Weight 18-. In"a.displacement ment tank,

fof the liquid admitted to said tankforcontrolling the supply'ofpressurethereto for effecting the discharge of'liquidtherefrom, and means includng inter-meshing elements means controlled by the toprevent*preadmission of pressure pr or to the, discharge of liquid fromsaid tank.

sion-and dischaige'of liquid 'Withrespect th'e'reto,and'-means carriedby said base comprising a iveightedarm provided with a pin-- 19." In adisplacement pump, a stationary.

and movable therewith,wand--stationary means having- .tcharge pipesleading to and from saidtank 22; In a 'displacement pump,

operative fiuid connection with said pipes. a: 23. In a displacement'PHHIP, a pivoted tank, substantiallyrigidwliquid inlet and disand" Imovable: therewith, and stationary means having a fluid and swivelconnection with said pipes coaxial tothe axis of the tankpivot: '5 i r24; In a displacement pump, a fiui'd container, pressure fluid meansforpumpingv fluid therefrom,

means for controlling said latter means comprising. a -valve, anoscillating. weighted arm adapted to control said -25'.-:In apinnp,1a:;plurality of pivotally mountedtanks,-ineans for admitting pumpingmedium thereto including apluralityz of passages and "a ported slidevalve adapted to interconnect'said passages, and;v means for controlling5 said valve bymovement of said tankszp.

26:- In pump, plurality pivotally -inounted-ta'nks, means for admittingpumping medium theretoincluding a plurality of passages; and aresiliently POSllZiOllGd. ported slide valve controllingsaid-passagesyand means for controlling-said "valve by: move- -,ment ofsaid tanks 27 In a displaceinents pump, a base frame having upstandingmembers and a transverse shaft, an elongated support-pivotally mountedon said shaft, a, plurality otitanks carried by said support,counterbalancing means co- .cperating with said support,inlet/anddisof-pivotally mounted tanks, and

charge means for said tanks arranged coaxial with the pivotal axisthereof, and means ,controlled by the movement of said tank about said:pivot for supplying alternatively to said tanks.

pumping fluid a. plurality 28..-In adisplacement, pump,

a liquid inletanddischarge means-forsaid tanks arranged coaxialwit-lithe pivotal axis'thereof including a pluralityofswivel joints- In:a pump, afluidcontainer, fluid pressure means for pumping fluidtherefrom, means for controlling said-latter means comprising a valve,an oscillatory weighted arm tanks, and control mechanism with the.dischargeline.

operatively controlling said valve, and means for causing oscillatorymovement of said arm to vary the resisting force thereof from a minimumto a maximum, said valve adapted to be actuated after said force reachesits maximum. a

30. In a displacement pump, a plurality of pivotally mounted pumpingtanks, means for alternately filling and discharging said.

tanks comprising control mechanism ,con-

trolled by the weight. of a liquid, admitted V to i said tanks, andmeans including.a single weighted HIHICOPIGVGI-lfi operation. of said,control mechanism until one of, said tanks -isfilled.

31. In a displacement.,pump,a plurality of .pivotally-mounted pumpingtanks, means for alternately filling and discharging said tanks, andcontrol mechanism therefor controlled by the tilting action ofsaid-tanks including a single swinging weightedarm. H} 7 -32...In adisplacement, pump, a plurality of pivotally mounted pumpingtanks,,n1eans for alternatelyv filling and discharging said i thereforcon trolled by v the tilting ,action. of saidtanks including. a swingingweighted arm-movable .with all movements of said tanks.

. a vo a ly mounted tank including a transverse shaft about which thtank. pivots, .anddiquid inlot; and discharge means for said tankarranged v.coaxiallyqwith saidshaft.

34. In a displacenientpump, a plurality of movable tanks, ineanswherebyliquid 33. In a displacement pump,

maybe supplied to. saidtanks in alternation, v.and means wherebypressurefluid is admitted to said tanks to dischargev said liquid thereincomprising movement of said tanks means controlled by the operative tointerconnect the latter prionto the connection of thetank to whichpressure has with a dischargelineg H I In a displacement pump, aplurality oftanks, means-forsupplying liquidf to said tanks.- inalternation, and tank discharging means, including liquid controlledmeans, .for admitting pressure fluid, to each,tank to discharge theliquid atherein, said ,tank discharging means operating to. interconnect.said tanks prior to, the connection ofjthe tank to whichpressure hasbeen-supplied 36. .In. a displacement .pump, a plurality of tanks,;meansforsupplying liquid to, said .tanks in alternation, and tank dischargingmeans, includi 11g. valve, .mechanisin having a lost motion connection,for admitting pressure fluid to each tank to discharge theliquidtherein, said tank discharging means operating to interconnectsaid-tanks prior to the connection of the tank t WhichQ-pressure hasbeensupplied with tlie discharge .line- 37. Ina displacement tank, aplurality been supplied I of tanks, tanks in alternation,

means for supplying liquid to said and tank discharging means, includingvalve mechanism having actuating means therefor and fluid control- 5ling means for said actuating means, for admitting pressure fluid chargethe liquid therein,

to each tank to dissaid controlling means operating to interconnect saidtanks prior to the connection of the tank to Which pressure has beencharge line.

In testimony whereof I aflix my signature.

HALBERT B. HALVORSEN.

supplied With the dis- I CERTIFICATE OF ooRREonoN.

Patent No. 1,600,504. Granted September 21, 1926, to

HALBERT e. HALVORSEN.

it is hereby certified that error appears in the printed specificationoi the above numbered patent requiring correction as follows: Page 2,line 104, claim 1, strike out the word "tiliahie" and insert the samebefore the word fluid in iire same iine; and that the said LettersPatent shouid be read with this corsection therein that the same mayconform to the record of the case in the Eatent Office.

Signed and sealed this 17th day of March, A. D. 1931.

M. J. Moore, (S l) Acting Commissioner of Patents.

